working out?

Alicia
I'm only 4+4days and I'm a fairly active person, I work at a hotel and am on my feet for 6 hours a day (taking 12,000 steps a day). I want to stay active but I'm terrified of overdoing it and possibly causing a miscarriage. I've never miscarried before but it's a fear of mine because of how common they are. 
Has anyone talked to their doctors about this? My appointment isn't until the 14th. Any ideas on what's safe and what isn't?